Process intensification by low frequency oscillations

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1. Verfasser: Olayiwola, Bolaji Oluseyi 1973- (VerfasserIn)
Format: Abschlussarbeit Buch
Sprache:English
Veröffentlicht: München Verl. Dr. Hut 2009
Ausgabe:1. Aufl.
Schriftenreihe:Schriftenreihe mechanische Verfahrenstechnik 13
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adam_text PROCESS INTENSIFICATION BY LOW FREQUENCY OSCILLATIONS IN PARTIAL FULFILMENT OF THE REQUIREMENTS FOR THE AWARD OF DR.-ING. BY FACULTY OF BIOCHEMICAL AND CHEMICAL ENGINEERING TECHNISCHE UNIVERSITAET DORTMUND, GERMANY SUBMITTED BY BOLAJI OLUSEYI OLAYIWOLA FROM OYO IN NIGERIA DATE OF EXAMINATION: 26.05.2009 1. ASSESSOR: PROF. DR.TECHN. P. WALZEL 2. ASSESSOR: PROF. DR.-ING. J. MITROVIC DORTMUND, 2009 CONTENTS 1 INTRODUCTION 1 1.1 OBJECTIVES AND SCOPE 1 1.2 MOTIVATION 3 2 THEORY AND LITERATURE REVIEW 5 2.1 THEORETICAL BACKGROUND 5 2.1.1 FUNDAMENTALS OF FLUID FLOW IN PIPES AND DUCTS 5 2.1.2 BASICS OF VIBRATION 13 2.1.3 ENERGY DISSIPATION BY DAMPING 17 2.1.4 CLASSIFICATION OF OSCILLATING EQUIPMENTS 19 2.1.5 DISPERSION OF SUSPENSION IN A STEADY SHEAR FLOW 20 2.1.6 FILTRATION PROCESS 24 2.2 LITERATURE REVIEW 30 2.2.1 STEADY AND UNSTEADY FLOW IN FINNED DUCTS 30 2.2.2 CONVECTIVE HEAT TRANSFER INTENSIFICATION 31 2.2.3 PERFORMANCE ENHANCEMENT IN CROSSFLOW FILTRATION 39 3 EXPERIMENTAL SET-UP AND PROCEDURES 47 3.1 EXPERIMENTAL PARAMETERS 47 3.1.1 INFLUENCING PARAMETERS IN OSCILLATORY FLOW SYSTEMS 47 3.1.2 PRESSURE CONDITIONS ALONG MEMBRANE IN CROSSFLOW FILTRATION .... 51 3.2 EXPERIMENTAL MATERIALS 54 3.2.1 OSCILLATORS USED FOR PULSED FLOW GENERATION 54 3.2.2 FLOW VISUALIZATION 56 3.2.3 HEAT TRANSFER DEVICE 57 3.2.4 CROSSFLOW MICROFILTRATION DEVICE 58 3.2.5 CHARACTERISTICS OF THE MEMBRANES 59 3.2.6 YEAST PARTICLES 60 3.3 EXPERIMENTAL PROCEDURES 61 3.3.1 FLOW VISUALIZATION EXPERIMENTS 61 3.3.2 HEAT TRANSFER MEASUREMENTS 64 3.3.3 CROSSFLOW FILTRATION 66 3.3.4 SIMULATION USING COMPUTATIONAL FLUID DYNAMICS (CFD) 69 3.3.5 EVALUATION OF ENERGY DISSIPATION 70 4 RESULTS AND DISCUSSION 73 4.1 FLOW BAHAVIOUR AND ANALYSIS 73 4.1.1 FLOW VISUALIZATION 73 V CONTENTS 4.1.2 PARTICLE IMAGE VELOCIMETRY ANALYSIS 77 4.2 HEAT TRANSFER ENHANCEMENT 83 4.2.1 DETERMINATION OF HEAT TRANSFER ENHANCEMENT 83 4.2.2 HEAT TRANSFER COEFFICIENTS AND FRICTION FACTOR FOR STEADY FINNED CHANNEL FLOW 84 4.2.3 EFFECTS OF FLUID AND GEOMETRICAL PARAMETERS ON THE HEAT TRANSFER COEFFICIENTS 85 4.2.4 HEAT TRANSFER ENHANCEMENT FACTOR 91 4.2.5 NUMBER OF TRANSFER UNITS (NTU) 95 4.2.6 HEAT TRANSFER ENHANCEMENT AND ENHANCED TRANSVERSE VELOCITY . . 96 4.3 FLOW AND HEAT TRANSFER ANALYSIS BY COMPUTATIONAL FLUID DYNAMICS .... 97 4.3.1 VALIDATION TEST 98 4.3.2 PERFORMANCE COMPARISON 101 4.4 IMPROVED PERMEATE FLUX 106 4.4.1 EFFECT OF FLOW VELOCITY 106 4.4.2 EFFECT OF TRANSMEMBRANE PRESSURE DIFFERENCE 107 4.4.3 EFFECT OF VOLUME CONCENTRATION OF THE FEED SUSPENSION 108 4.4.4 EFFECT OF SUPERIMPOSED OSCILLATION 109 4.5 ENERGY DISSIPATION IN THE FINNED CHANNEL 112 5 CONCLUSION AND RECOMMENDATIONS FOR FUTURE WORKS 121 5.1 SOME USEFUL FEATURES OF THE OSCILLATING FINNED SYSTEM 123 6 LIST OF SYMBOLS 125 BIBLIOGRAPHY 129 A FRICTION POWER INPUT EXPRESSION IN THE MICROFILTRATION DEVICE 141 * STATISTICAL ANALYSIS OF EXPERIMENTAL DATA 145 VI
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series Schriftenreihe mechanische Verfahrenstechnik
series2 Schriftenreihe mechanische Verfahrenstechnik
spellingShingle Olayiwola, Bolaji Oluseyi 1973-
Process intensification by low frequency oscillations
Schriftenreihe mechanische Verfahrenstechnik
subject_GND (DE-588)4113937-9
title Process intensification by low frequency oscillations
title_auth Process intensification by low frequency oscillations
title_exact_search Process intensification by low frequency oscillations
title_full Process intensification by low frequency oscillations Bolaji Oluseyi Olayiwola
title_fullStr Process intensification by low frequency oscillations Bolaji Oluseyi Olayiwola
title_full_unstemmed Process intensification by low frequency oscillations Bolaji Oluseyi Olayiwola
title_short Process intensification by low frequency oscillations
title_sort process intensification by low frequency oscillations
topic_facet Hochschulschrift
url http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=018711940&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA
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